Is there a tsb on this problem? I know its coming from the cab lights, just wondering what GM's fix is.

I doubt there is a tsb since it probably isn't very common. I suspect they will try to figure out what exactly is leaking (housing, lens, gasket etc) and replace the culprit.

Funny-well not so funny. Mine is just out of (factory) warranty and my headliner was all wet after a driving rain yesterday. Could it be that the center cab light is loose and not sealed well? Maybe.


So now Ill go outside and probably break the lens getting it off, strip the screws tightening it up, then slip and fall on my head when the step stool slides out,well see.

LOL, be carefull.

04duramax





I had a leak up on my over head console thought it was the cab lighttoo . Took it in the shop they looked at it and ran water on the cab light but it wasint them it cam from the back door the seal was bad on it had my whole headliner wet. Might want make sure its not a seal around doors.